Quarter	Percent
1989-03-31	8.55
1989-06-30	8.56
1989-09-30	9.01
1989-12-31	10.36
1990-03-31	10.7
1990-06-30	9.88
1990-09-30	9.79
1990-12-31	9.61
1991-03-31	9.46
1991-06-30	9.24
1991-09-30	9.48
1991-12-31	9.7
1992-03-31	9.87
1992-06-30	9.89
1992-09-30	10.7
1992-12-31	10.62
1993-03-31	9.35
1993-06-30	7.86
1993-09-30	7.61
1993-12-31	6.78
1994-03-31	6.21
1994-06-30	5.83
1994-09-30	5.78
1994-12-31	5.79
1995-03-31	6.17
1995-06-30	6.06
1995-09-30	5.63
1995-12-31	5.38
1996-03-31	4.53
1996-06-30	4.3
1996-09-30	4.24
1996-12-31	4
1997-03-31	3.95
1997-06-30	4.01
1997-09-30	4.17
1997-12-31	4.33
1998-03-31	4.09
1998-06-30	4
1998-09-30	3.97
1998-12-31	3.5
1999-03-31	2.82
1999-06-30	2.38
1999-09-30	2.51
1999-12-31	3.06
2000-03-31	3.43
2000-06-30	4.15
2000-09-30	4.57
2000-12-31	4.85
2001-03-31	4.62
2001-06-30	4.5
2001-09-30	4.15
2001-12-31	3.33
2002-03-31	3.27
2002-06-30	3.36
2002-09-30	3.26
2002-12-31	2.93
2003-03-31	2.59
2003-06-30	2.28
2003-09-30	2.05
2003-12-31	2.04
2004-03-31	1.98
2004-06-30	2.01
2004-09-30	2.03
2004-12-31	2.07
2005-03-31	2.05
2005-06-30	2.04
2005-09-30	2.03
2005-12-31	2.22
2006-03-31	2.48
2006-06-30	2.75